Cardboard baby boxes are being promoted as a good sleeping space for infants, but UK researchers are warning there’s no evidence they are safe or reduce sudden infant death syndrome or SIDS. 
They say more study is needed on the safety of these boxes. 

New research shows a link between eating seafood and healthy aging. A US study finds an association between higher blood levels of omega 3 fatty acids found in seafood and a higher likelihood of healthy aging of older adults.

Women with a history of pre-eclampsia may have a higher risk of some types of dementia later in life. 
Pre-eclampsia is a life-threatening condition related to high blood pressure and other complications during pregnancy. Researchers say more study is needed to understand the possible impact of pregnancy on blood vessels in the brain. 

Sources:

1. BMJ
2. BMJ
3. BMJ